This is a pilot valve seal kit designed to restore the proper function of the pilot hydraulic control system in Volvo excavators. It utilizes high-grade nitrile rubber and durable metal components to ensure a tight seal and prevent internal leakage, unlike worn seals that allow fluid bypass. Operators may notice a loss of precise control, sluggish joystick response, or difficulty holding hydraulic functions steady when this seal kit fails.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
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Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India
Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
Initial signs of failure include a slight sponginess or delay in joystick response. If ignored, control precision will continue to degrade, making it difficult to perform fine movements. Eventually, the pilot system may lose pressure, leading to a significant reduction in hydraulic function speed and power.
Thoroughly clean the pilot valve bore and spool before installing new seals to prevent damage. Ensure seals are seated squarely and not twisted during installation to avoid immediate leakage.
Inspect the pilot valve spool and bore for wear or scoring during seal replacement.